Datolite Vs Covellite
Origin
Mexico, USA, Southern and central Africa
Mexico
Color
Greenish, Colorless, White, Brown, Colorless, Yellow, White, Green
Blue, Blue, Black
Streak
White
Grey, Black, gray
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Not Available
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Deities
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Brittle
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.00
4.6-4.76
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
None
Perfect on {0001}
Mohs Hardness
5-5.5
Not Available
Chemical Composition
CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Pleochroism
NilArthur Thomas
Marked
Transparency
Transparent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Refractive Index
1.621-1.675
1.45-2.62
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Hexagonal
Birefringence
0.044
Not Available
Clarity
Transparent
OpaqueAnthony et al
Neurological
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Cardiovascular
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Respiratory
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Datolite Vs Covellite Fracture
Fracture is an important parameter when you compare Datolite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Datolite Vs Covellite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Datolite is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Metallic and Uneven. Covellite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Datolite Vs Covellite Luster
A primary knowledge about Datolite vs Covellite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Datolite exhibits Vitreous luster. Covellite, on other hand, exhibits Resinous luster.